Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF89L
Wavelength:
µm
(0.360 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.66932806-0.0136919991λ^{2}+0.0484216361λ^{-2}+0.00132160482λ^{-4}+2.4217258\text{×}10^{-05}λ^{-6}+8.50124351\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.45e-07 1.4e-08 -3.45e-11 9.44e-07 1.04e-09 0.253
n_d: 1.953749
V_d: 32.318108
glass_code: 954323
density: 5.1 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.8e-06 K-1
ΔP_gF: -0.0002
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)